Professional Grade Super Duty Solid Core Electric Dog Fence Wire - Compatible with All Wired Electric Pet Fence Systems - 1000 Feet 16 Gauge Wire - Much Thicker, Heavy Duty Wire than Factory Packaged 20 Gauge Wire (Included with Average DIY Fence Systems), for Superior Wire Longevity 1000 Foot Continuous Spool - Eliminates the Need for Splicing Wires Together HMW Polyethylene Coating - Superior Protection Against UV Rays and Water Exposure ROHS Compliant/Direct Ground Burial Rated/Tough Guard Coated - The Standard Among Professionals Universally Compatible With All Wired Electric Dog Fence Systems - All Brands and Wired Applications